Why to choose nfs over vboxsf for mounting host folders inside a VirtualBox VM!

Simple answer: SPEED

Long answer:

Most projects I work on a the moment are web related and I like my development environment to be as close to production as possible.

Therefore I set up a Debian Jessie some time ago and mounted my whole /Users/cb0/Sites directory into the VM. So I configured the shared folders inside the VirtualBox and used this code inside /etc/fstab inside the Debian.

Sites /Users/cb0/Sites vboxsf defaults,rw,uid=33,gid=33 0 0

This worked fine for custom php apps and even for symfony 1.4. Now I’m working on a symfony 2 project which seems to generate a whole bunch of cache files before starting to deliver the webpage.

This resulted in an average load time of 45s (yes seconds) which I could not bear for more than 2 pageloads. So I search for the bottleneck and found out that the creation of the cache files took too long. After reading some documentations I decided to try to mount the share over nfs instead of the vboxsf.

Here’s how to do it:

1. [Host] Create or open the file “/etc/nfs.conf” and insert the following line:

nfs.server.mount.require_resv_port = 0

2. [Host] Edit the /etc/exports file and configure your desired share folder like this:

/Users/cb0/Sites -mapall=501:20 -network -mask

Replace “192.168.56” with the address you have chosen for your Host-only Adapter.

3. [Host] Run the following 3 commands:

> sudo nfsd update
> sudo nfsd checkexports
> showmount -e

The ‘showmount’ command will output something like this if everything went fine:

# Exports list on localhost:

4. [GUEST] Install necessary software. (As mentioned I use debian jessie)

sudo apt-get install nfs-common

5. [GUEST] Add the mount infos into the file /etc/fstab /Users/cb0/Sites nfs soft,intr,rsize=8192,wsize=8192 0 0

This tells debian to mount the directory /Users/cb0/Sites located on my host machine into the exactly same directory on my linux. (Note: You have to create the folder inside the guest first.) I do this for convenience, you could mount it somewhere else.

6. [GUEST] Now mount this share.

sudo mount /Users/cb0/Sites

and you are done.

After these simple steps and no other tuning my sf2 web project load in about 580ms. This is more than 70times faster than before.
I also noticed a small speedup in my other web apps. Now I can relax, sit back and continue my work on this project.

FOSUserBundle customization notes


I’ve been busy creating a new project in which I use symfony2 for the first time. Working with symfony1.x for nearly 3 years I really like some of the ideas of symfony2. However there are also some things I dislike, or just don’t fully understand yet.

Here are some quick notes I took while reading the FOSBundle Documentation.


Default Templates

The easy and quick way:

  • Basically override the FOS Template by creating a file under ‘./app/Resources/FOSUserBundle/views/layout.html.twig’
  • Be sure to include this block, which will hold the FOSUserBundle Content.¬†
{% block fos_user_content %}
{% endblock fos_user_content %}

2. The more complicated way

Symfony 1.4, forward to a filtered list view

Today I wrote a new symfony module which needed to use the view of an old model as a detail view.
So the only thing thats missing is a call to the old module’s ‘list’ action with a preset filter value.
However the described


didn’t worked out, because it seems that you can’t set a filter for a different module.
So I analysed the user settings ( see “debug bar”) and came up with this solution:

$this->getUser()->setAttribute('myOldModule.filters', array('filter_att' => array('text' => intval($request->getParameter('id')))), 'admin_module');
$this->forward('myOldModule', 'index');

“myOldModule” = Model Name of backend module.

“filter_att” = The name of the model column you want to filter.

mcrypt and PHP, on Mac OS X Snow Leopard 10.6.4

I found this great tutorial on how to install mcrypt into php under OS X 10.6.1
Works like charming with OS X 10.6.4 and PHP Version 5.3.2.

mkdir src
cd src
wget http://museum.php.net/php5/php-5.3.2.tar.bz2
wget http://downloads.sourceforge.net/project/mcrypt/Libmcrypt/2.5.8/libmcrypt-2.5.8.tar.gz?r=http%3A%2F%2Fsourceforge.net%2Fprojects%2Fmcrypt%2Ffiles%2FLibmcrypt%2F2.5.8%2F&ts=1306411641&use_mirror=ignum
tar xzvf php-5.3.2.tar.bz2
tar xzvf libmcrypt-2.5.8.tar.gz
cd libmcrypt-2.5.8
MACOSX_DEPLOYMENT_TARGET=10.6 CFLAGS='-O3 -fno-common -arch i386 -arch x86_64' LDFLAGS='-O3 -arch i386 -arch x86_64' CXXFLAGS='-O3 -fno-common -arch i386 -arch x86_64' ./configure --disable-dependency-tracking && make -j6 && sudo make install
cd ../php-5.3.2/ext/mcrypt
MACOSX_DEPLOYMENT_TARGET=10.6 CFLAGS='-O3 -fno-common -arch i386 -arch x86_64' LDFLAGS='-O3 -arch i386 -arch x86_64' CXXFLAGS='-O3 -fno-common -arch i386 -arch x86_64' ./configure --with-php-config=/Developer/SDKs/MacOSX10.6.sdk/usr/bin/php-config && make -j6 && sudo make install
echo "Completed install, now make sure to edit your php.ini"
echo "and check for \"enable_dl = On\" and add \"extension=mcrypt.so\"" to the dynamic extentions"

This is the little bash script I wrote according to his tutorial. This comes without any warranty!!!
Be aware that you have to enter your root password twice while installing this script.

Big Thanks to Michael Gracie